Calculation problems for shell and tube heat exchangers
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For a fixed-tube-sheet heat exchanger where steam and water exchange heat, the client requires that steam flow through the tube side while water flows through the shell side. Is the method for calculating the heat transfer area the same as in the case where steam flows through the shell side and water through the tube side? Which approach yields a higher heat transfer efficiency? What is a typical flow rate for steam when it flows through the tube side?
It’s different; there’s a big difference. It is generally believed that the gas flow rate should be around 10–30, but this still needs to be determined through calculations; for high-pressure gases, a lower flow rate can be used. Flow velocity affects heat transfer by influencing turbulence, and high-pressure gases easily reach a turbulent state at relatively low flow velocities.
It’s definitely different, as the surface heat transfer coefficients of each are different; it’s best for the steam to be in the shell side. The steam flow rate is generally within 30 meters; the specific flow rate depends on the pipe size as well as the shell size
I have already discussed with the client the use of the shell side for steam, but steam still ends up flowing through the tube side. Anyone with experience in this type of design who is willing to share it would be appreciated
The heat exchange area used for the tube side is small, right?
During the cleaning of fouled blocks, the tube side is more convenient than the shell side; therefore, media that tend to form scale are routed through the tube side.
I don’t understand why Party A insists on having the steam flow through the tube side
Hello, do we need to create turbulence in it?